Recombination processes in CdTe quantum-dot-doped glasses

L A Padilha, A A R Neves, C L Cesar, L C Barbosa, C H B Cruz

Full text: http://dx.doi.org/10.1063/1.1801683

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Abstract

Electron-hole recombination in CdTe quantum dots was studied by photoluminescence and resonant femtosecond pump-probe measurements. A dependence of recombination times with pump pulse intensity was observed and we attribute this to the Auger recombination process. The overall kinetic processes that we observed are a fast decay from the initial excited state to surface trap states, the Auger recombination, the recombination of electrons from the surface states, and a longer time recombination which we attribute to electrons in the deep traps states. (C) 2004 American Institute Of Physics.

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